Temporary binder



C. D. TRUSSELL.

TEMPORARY BINDER.

APPLICATION FILED 0CT.1, 1921.

Bissuea Mar. 2s, 1922. 15,322.

2 SHEETS-SHEET C. D. TRUSSELL.

TEMPORARY BiNDER.

APPLlcAxoN f1LD,0cT.1,1921.

Reissued Mar. 28, 1922. 15,322.

2 SHEETS-SHEET 2. Fb'g. .5. 1

linien/Lof 1UNITED STATES PATENT OFFICE.

MANUFACTURING COMPANY, F POUGHKEEPSIE, NEW YORK, A ,CORPORATION 0F NEW YORK.

TEMPORARY BINDER.

Specification of Reissued Letters Patent. Rissued Map, 28, 1922,

Original No. 1,180,342, dated April 25, 1916, Serial No. 763,971, led April 28, 1913. Application for reissue filed October 1, 1921,

To alll @chem t 'may concern.'

Be it known that I, CLARENCE D. TRUS snm., a .citizen of the United States, residing in Poughkeepsie, in the countyof Dutchess and State of New York, have invented certain new and useful Improvements in l, Temporary Binders, of which the following 'isaspecification 1 The invention aims to provide certain` im proveniente -in temporary binders such as' are commonly used foi' blank-books, account .books' and the like.

The object of the invention is to provide a simple,'strong and attractive construction which has certain other advantages specified more fully hereinafter.

The accompanying drawings illustrate an :embodiment of the invention.

Fig. 4 is a similar section with tlieparts.

in another position.

Fig. 5 is a longitudinal section tlirough the back of the book and theback of the nat: other suitable points according yto their loose leaf mechanism.

Fig. 6 vis a plan, partly in section, ,of one:

end of the mechanism.

same.

Fig. 8 isla perspective view of the end lever foropening' the rings.

Fig. v9 is a plan, partly broken away, o f y van intermediate part of the ,mechanism same.

carrying a pair-fof intermediate ring-openin levers.

` ig 10 is a longitudinal section of' the Fig'. '7 is a longitudinal section of the.'

serial no. 504,773.

t0 foim two weakened lines for the bending or hinging ofthe iiexible covers relatively to the back, these ylines extending nearly but not quite to the top and bottom edges of the covers. The loose leaf binding` mechanism is then fastened upon the inner side of the back between the covers in any one of various ways. The foregoing features have numerous points of great advantage, as set forth at length in. my aforesaid application.

Cne feature of improvement in the present construction is the mode ofattaching the loose leaf binding mechanism to such a back and covers. This is 4done by providing a strip D of flexible material, such as heavy cloth, which is fastened to the mechanism and has its side edges projecting beyond the mechanism and fastened to the leather covers or back by lines of stitching E, which may pass through the weakened lines C lor be located alongsidesuchlines. For greater strength it is preferable touse a two-needle machine for this stitching, The strip D is aL band of heavycloth. or the like which passes between the back plateF of the loose leaf mechanismand a similarly curved binding plate Gr`th'e se two plates F and G being fastened to each other near'their ends and lengths by means of tonguesl Hben't upward from the binding plate G and extending through the strip ,of cloth D and through notches in the back` plate F of the loose leaf mechanism, and bent over the latter tov clamp the several parts together.

The' loose leaf mechanism comprises the curved back plate F of spring material having inwardlybent edges J 'and plates K carryingthe prongs orringslg. 'The prongs areVY fastenedV to the plates in any l suitable way, Aas for example, in the manner shown in my Patent No. 959,182, and the prongs of eachpair are'in pivotal engagement at their lower ends, the lplates K being located betweenthe edges of the spring back plate, so that the pivotal ends ofi-the prongs are always Vpressed against each other. 'When the prongs are brought into engagement at their upper ends the plates K lie in their lowered position, Fig.` 3, with their inner edges below the `line connectingtheir 'upper edges, so that the spring pressure tends to hold themy thisV positioml the contact' bei?` tween 'the upper ends or"l the prongs'pre'- venting any further downward movement.

Whellthe plates areforcibly lifted, a', to `bring their inner edges-above thegllne'b4 tween their outer edges, the spring pressure of the back plate holds them in thisposltien, further upward movement being prevented b means of projecting tongues M on the e ges of the plates. The tongues from one plate project' under the'oppcsite plate-and'- thus prevent further upward 'movement The arrangement 4and location of these tongues, and the design'ol the plates K for permitting attachment of the prongs, and the operating levers hereinafter referred to are shown' ullyin Fig. 2. In orderftofim-` prove the appearance of the mechanism and to cover the endsof the same I provide at one end or at 'each 'end'aV piece for closing the space between the back plate andthe ringcarrying-plates." For example, 1n the construction illustrated, I'providea plain endpiece at one end, and a notchedendspiece at the other end," the latterbeing notched to accommodate an vopening lever hereinafter referred'to; 'Each of these end-pieces comprises a plate M shaped to extend across the space to be closed",` and having a top flange 30 N which' extends approximately. to the ends of the plateKA and which provided with notches O (Fig. 6) "adaptedV to be engaged by similar projectionsP lformedfinV the edges of the curved' spring plate. The springV platel ll"4 extends beyond thefends of the ring-l carrying plates K `andthe flange N of the endfpiece-is gripped between the flanges J l of the springplate, so that as the end-piece is inserted the part N, engaging the projections P', forces the flanges J outward until the recesses O4 come into` register with the projections V13? Vwhereupon the latter spring intov the" recessesl and lock thejparts together, so" that 'the'endpi'eee is held in place-with an impositiva springloclr.

The end-piece at the lower end of ,the

mechanism is formed withy a notch; l? in which is guided an end lever for openingthe rings, the finger portion only of such lever being extended outward beyond the endpiece N. This end lever, for openino' the rings, is shown more fully in Figs. 6, j? and 8. The lever has a comparatively broad, inner end portion Q whiclrbears against the back plate and the upper edge of Vwhich forms a pair of shoulders engaging the under sides of the ring-carrying plates K. 4The lever .is then formed with a narrow interme diate portion R which passes upward through notches S in the ed es of the plates K, and thence downward t rough notches T so as to embrace the tongues U which are formed by said notches. The portion R then passes through the guiding 'notch P in the end-piece M, N, and preferably broadened againfto ormthe ngerpiece V. i' By the construction described the lever is housed or attached to the ring-carrying plates .through-the tongues U, entering .the loop 1n the intermediate portion R of the lever, and

the broad, inner end Q of thelever simply "bears against the back plate with a camming action, as shown by the full and dotted lines in Fig. 7. The end portion Q, of the lever is curved in such a way that practically from the beginning to the end of the downward movement 'or' the finger end of the lever the rate et movement of the shoulders which' bear against the under side of the plates K bears a constant relation to the rate of movement' of the fingeriend V. y This. result cannot'be secured by a simple lever movement because',l asis well known, the angle of ap-` plication of the-lever to the work varies and thus the" rate at which the load is being moved varies in dilferent positions of the lever." Thisisa materialdisadvantage in levers for operating the loose leaf mecha-- nism. It is advantageous to secure, as is done with the lever herein described, a practically constant .pressure of the operators linger on the lever throughout the movement of the latter. Such devices are necessarily limited to a short lever and a short movement. If'thelever does not move with an easy action 'andv substantially uniform pressure, the book is apt to be condemned; andan easy action cannot be obtainedif the pressure required to raise the plates is mostly encountered over'only' a part of the movement of the linger end ofthe lever.

Another feature of the improvement, which is especially applicable to books of the larger size, is the provision of one or more opening levers at an intermediate point 105 inthe length of the plates. Insuch a position an opening lever gives better results than if located at the end, for the reason that the pressure comes near-er the -iniddle of the plates and'therefore is less apt to 110 twist the plates. The finger portion of such an intermediate lever may be located within the space defined by the innerv edges of the leaves, as indicated in Fig. 1 1. Such intermediate opening means is preferably provided in addition to the end lever previously described. In the example illustrated two llevers are provided, so located as to be easily pressed with one hand, being gripped between the thumb and finger and pressed toward each other to raise the plates. Each of these levers works on the -same general principle as the end lever. vIt is provided with a broad, inner end X bearing against the back plate and having shoulders engaging the under sides of the ring plates K, from which shoulders a narrower portion extends outward through notches in the plates K, and forms the outer linger end. The'projeeting portions W. and DW are 130 slightly broadened as-aUY beyond the plates K t0 prevent them from slipping downward through the notches Z` in said plates when the plates are raised.

There are certain purposes for which books of the dividedring type arenot used, because theholes in the sheets arc so much larger in diameter than the rings that theyV permit a considerable movement of the sheets. Comparatively large holes in the sheets are necessary in order to permit their easy introduction and withdrawal. I have, however, provided means whereby the sheets may be provided with holes as large as usual but after they are placed upon the rings their movement is limited so as to be very slight` or to be practically eliminated. F or this purpose I-provide an alining means adapted to be engaged by the inner edges ofthe sheets. In the form illustrated the alining means comprises a y pair of plates av of spring metal extending downward between the ring-carrying plates K and havingend flanges Z; byA which they are heldin place, and kept centered while in use, the lntermediate portions ofsuch plates being bentrin curves approximately concentric with the rings L and smaller than such rings, being displaced therefrom by distances (measured in the pl-anes of the leaves when lying flat, the book being open) substantially equal to the width of the margins c of the leaves al, whereby the latter are held as far outward from the center as the engagement of the rings with the -holes e therein will permit. The aliners being of spring metal, are adapted to yield a little but they will hold with sufficient firmness for practical purposes, and it will be observed that they are in contact on opposite sides with the edges of the leaves. Thus the marginal portions c between the edges of the leaves and the nearest edges of the holes are confined between the rings and aligners. In Fig. l1 one of the sheets d is shown of exaggerated thickness and in cross-section so as to indicate the mode of operation. When the rings L are opened there is a large clearance between these rings and the aliners a so that there is no difficulty whatever in introducing the sheets. After the sheets are introduced the closing of the rings brings their edges against the aliners and prevents any substantial play of the leaves. The aliners also have the advantage of guiding the inner edges of the sheets in turning over the leaves and in closing the book.

Though I have described with great particularity of detail certain specific embodiments of each of the features of improvement of this invention, yet it is not to be understood therefrom that the invention is restricted to the specific constructions illustrated. Various modifications thereof in detail and in' arrangement and combination ofthe parts may be made by those skilled in the art without departure from the invention.

I claimas my invention:

l. A temporary binder including in combination a curved spring back plate, a` pair of ring-carrying plates extending between the edges of said back plate, and an end piece closingv the space at the end between said back plate and said ring-carrying plates, said end piece being fastened to said back plate with a spring lock.

2. A temporary binder including in combination a curved back plate, a pair of ringcarrying plates extending between the edges of said back plate, and an end piece closing the space at the end'between said back plate and said ring-carrying plates, said back plate extending beyond the ends ofsaid ringcar-rying plates and Said endp'iece hav-ing a flange lying between the extended edges of said back plate andsaid end-piece being fastened to the extendedportion of said back plate.

3. A temporary binder including incombination aback plate, a pair of ring-carry ing plates extending-between the edges of said back plate and adapted to be raised or lowered to open or close said rings, and a lever for raising said ring-carrying plates, said lever having an inner end portion bearing against said back plate and engaging the under sides of said ring-carrying plates and having an intermediate portion engaging the inner edges of said plates and having an outer end portion forming a linger-piece.

4. A temporary binder including in combination a back plate, a pair of ring-carrying plates extending between the edges of said back plate and adapted to be raised or lowered to open o-r close said rings, and a lever for raising said ring-carrying plates, comprising a wide inner end portion Q bearing against the back plate, and the Lipper edge of which forms shoulders engaging the under side of the ring-carrying plates, a narrow intermediate portion R passing upward through notches in the edges of said ringcarrying plates, and a finger end at the outer end of said intermediate portion.

5. A temporary binder including in combination a back late, a pair of ring-carrying plates exten ing lbetween the edges of said back plate and adapted to be raised or lowered to open or close said rings, and a lever for raising said ringscarrying plates, said lever being located in the space between two of the rings and adapted to be within the space defined by the inner edges of the leaves4 6. A temporary binder including in combination a back plate, a pair of ring-carrying plates extending between the edges of said back plate and adapted to be raised or lowered to open or close said rings, and a pair easily pressed with one hand, and said levers being adapted to raise .said plates by moving onepin one direction and the other in the opposite direction. y

7. A temporaryT binder including in 4oombination rings adapted for carrying perforated sheets, ring-carrying plates hinged at their outer edges and adapted to be raised or lowered at their inner edges to open or close said rings, and aliningmeans adapted to be engaged by the inner edges of such sheets to limit the movement thereof on the rings when the latter are closed, vsaid alining mean-s comprising plates passing between the inneredges of said ring-carrying plates and bent in curves approximately concentric with the rings. t

8..,In4 a ring binder in combination, movable ring-carrying plates, a back plate and an aliner4 engaged by said vring-carrying plates and having -ianges 'adapted to bear on said back plate for holding it centrally when i the rings are closed. I i

9.' A temporary binder in bool( form 'comprising rings for carrying perforated Y sheets together constitutingsubstantially complete rings of approximately eiroular-orm, and their carrying means located so remote from their abutting ends as to leave a' substantial-- portion of the rings below the-gringcenter free for engagement by the perforated `sheets to ,be bound, combined With alining-means. for such sheets consisting ,of aliners attached tothe binder in positions operative, Whenf the rings are closed and lthe sheetslaidout flat, to bear against the inner edges of the. i

sheets and hold them outward 4toprevent any substantial play of the. sheets. v

, In Witness whereof I have-hereunto Vsigned this specifioatioinl 'l CLARENCE D. TBUS-SELL.' 

